A masterclass to warm up the workshop and reflect on Net Zero Energy Clusters. A collaboration with EELISA university and the Universidad Politecnica de Madrid (UPM).

1. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
TT ENERGY EFFICIENCY
SUSTAINABLE BUILDINGS THINK TANK Madrid 23rd-27th Jan.2023
EE8
Net Zero Energy Clusters NZEC
Juan Maria Hidalgo-Betanzos
Irati Prol-Godoy

2. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
Some background
Infrared thermography
On-site testing
Thermal comfort
Blowerdoor test
Ventilation effectiveness
Simulation calibration
Materials
Construction
components Energy systems
Buildings scale
performance and
verification
Holistic approach and teamwork
Thermal insulation
Conductivity
Heat capacity
Facade tests
Windows
Simulations
PASLINK outdoor tests
Strategy optimization
System simulations
Energy management
Laboratory of Quality Control of Buildings
Basque Government (SPAIN)
Working in LCCE:
o Laboratory Construction Quality
o ENEDI Research Group UPV/EHU
Topics:
o Building energy performance
o Thermal comfort and overheating risk
o Building construction quality
o nZEB design for new BD & renovations
o District scale renovations & policy
linkedin.com/at-lcce @AT_LCCE
ENEDI RG website (English, Spanish, Basque):
https://www.ehu.eus/es/web/enedi
Laboratory webiste, with summary videos (English, Spanish, Basque):
https://www.euskadi.eus/area-termica/web01-a3calida/es/
Juan Maria Hidalgo-Betanzos
Irati Prol-Godoy

3. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
Energy Efficiency path

4. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
EE1 – Passive strategies
EE2 - Thermal Energy. Active technologies
EE3 - Renewable electrical energy – BIPV
NEB1 - Sustainable Building Retrofitting
DS4 - Digital twins & BIM
DS5 - Data governance & prioritisation
DS6 - IOT & AI
EE7 - Net Zero Energy Buildings
EE8 – Net Zero Energy Clusters
NEB2 - Innovation in Buiding Retrofitting: Towards NZEB and NZEC
TT Energy Efficiency path

5. What is for you a Net Zero Energy Cluster?
ⓘ Start presenting to display the poll results on this slide.

6. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
BUILDING
SCALE
What is a CLUSTER?
COMMUNITY
SCALE
CLUSTER
SCALE
A matter of size
NOT ONLY

7. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
What is a CLUSTER?
Some words from the experts:

8. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
Time & space boundaries
Flexibility?
Goal?
Planning?
Technology & Regulations are in constant evolution
A cluster with an ENERGY BALANCE SCOPE
An information sharing strategy based on linked data
for net zero energy buildings and clusters
https://doi.org/10.1016/j.autcon.2021.103592

9. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
A cluster of… STAKEHOLDERS
An information sharing strategy based on linked data
for net zero energy buildings and clusters
https://doi.org/10.1016/j.autcon.2021.103592

10. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
What is our EESA cluster about?

11. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
How does it look… on the ground?

12. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
How does it look… on the ground?

13. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
Net Zero Energy Cluster?
How does it look… on the ground?

14. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
https://www.cosmos.esa.int/web/esa-open-day-2019/mapa
A cluster made of Buildings… and what more?

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Typical modelling process for energy hub at building scale:
Energy hub at cluster level
A review of urban energy systems at building cluster level incorporating
renewable-energy-source (RES) envelope solutions
https://doi.org/10.1016/j.apenergy.2018.09.041
Modelling a cluster is way more complex
Sure, but: Even more possibilities!

16. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
Cluster (or district) ENABLES:
• More RENEWABLE SOURCES
• More ENERGY FLEXIBILITY
• More ENERGY STORAGE POTENTIALS
• Better ENERGY MANAGEMENT
• Wider FINANCIAL SOLUTIONS
• Savings thanks to ECONOMY OF SCALE
• …
Energy hub at cluster level
Cluster (or district) BARRIERS:
• Finding a COMMON GROUND
• Complex DECISION MAKING
• Establishing EXCHANGE RULES (Money, energy, others)
• Quality INFORMATION & ON TIME
• Mandatory SMART MANAGEMENT (ML, AI, IOT,…)
• Continuous COMMISSIONING
• …

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Some examples & ideas
A collaborative demand control of nearly zero energy buildings
in response to dynamic pricing for performance improvements at cluster level
https://doi.org/10.1016/j.energy.2019.02.192

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Power supply of the public buildings, solar
houses and community
Some examples & ideas
A review of urban energy systems at building
cluster level incorporating renewable-energy-source (RES) envelope solutions
https://doi.org/10.1016/j.apenergy.2018.09.041
DETAILED TIME ASSESSMENT

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“Future studies of energy hub at building cluster
level must consider beyond existing energy
systems/carriers, such as different archetypes of
buildings, RES envelope solutions, EV spatial demand
and circular economic etc, maximizing the synergies
of all these components.”
Energy hub at cluster level
A review of urban energy systems at building cluster level incorporating
renewable-energy-source (RES) envelope solutions
https://doi.org/10.1016/j.apenergy.2018.09.041

20. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
• Local solutions
• Unlimited systems
• Adaptive paths
• Smart implementation
Energy hub at cluster level
A review of urban energy systems at building
cluster level incorporating renewable-energy-source (RES) envelope solutions
https://doi.org/10.1016/j.apenergy.2018.09.041

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So much talking…
Wasn’t this a workshop?
How to compensate all the energy impacts of EESA
services, workers and visitors as a participative cluster?
Challenge? What challenge?

22. How could we turn EESA into an NZEC?
ⓘ Start presenting to display the poll results on this slide.

23. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
1. Evaluate the potentials of renewables and energy & thermal storage
at cluster level
buildings, open spaces and natural environment
2. Figure out the synergies between the activities and uses in this
cluster, to achieve energy flexibility
building uses, movility, outdoor lighting, irrigation,…
Mapping activities by space & time, weekdays, seasons
3. Discover the advantages and disadvantages of using IOT & AI at
cluster level, proposing solutions for the implementation barriers
Stakeholders’ engagement, milestones, …
Challenge? Better 3
Teams 13 and 16
Teams 14 and 17
Teams 15 and 18

24. SUSTAINABLE BUILDINGS THINK TANK - ENERGY EFFICIENCY
EELISA - SBTT WS EE8 - NZEC, 26th January, Madrid (Spain)
Thank you!
Let’s go for the challenges in MIRO
Thermal Area, Laboratory of Quality Control of Buildings,
Department of Housing, Basque Government. Vitoria-Gasteiz, Spain
termica@euskadi.eus www.euskadi.eus/lcce +34 945 011 800
Juan María Hidalgo-Betanzos
Irati Prol-Godoy
Research group ENEDI, University of the Basque Country UPV/EHU
www.ehu.eus/es/web/enedi/grupo-enedi
https://miro.com/app/board/uXjVPw52qe4=/